Apparatus, systems and methods for audio content diagnostics

ABSTRACT

Media content systems and methods are operable to detect sound using one or more microphones during presentation of a media content event. The audio content output is changed by a remedial action that is performed if the audio content detected by the microphones does not correspond to the intended audio content of the presented media content event.

BACKGROUND

Media devices, such as a set top box, a stereo, a television, a computersystem, a game system, or the like, are often configured to output audiocontent concurrently with presented video content. However, on occasion,the actual presented audio content is not the same as the audio contentthat is associated with the presented video content. Or, the actualpresented audio content is not the “best” available and/or preferredaudio content.

Accordingly, there is a need in the arts to provide the correct and/orthe best available audio content that corresponds to presented videocontent.

SUMMARY

Systems and methods of presenting media content are disclosed. Anexemplary embodiment has at least one microphone configured to detectedsound, wherein the sound includes at least output audio content that isbeing output from at least one speaker, and has a processor system. Theprocessor system is configured to determine a detected audiocharacteristic from the detected sound, determine an intended audiocharacteristic from audio content of a media content event that iscurrently being presented, compare the determined detected audiocharacteristic with the determined intended audio characteristic, andperform at least one remedial action in response to the detected audiocharacteristic not matching the intended audio characteristic, whereinthe remedial action changes the output audio content that is beingoutput from the at least one speaker.

BRIEF DESCRIPTION OF THE DRAWINGS

Preferred and alternative embodiments are described in detail below withreference to the following drawings:

FIG. 1 is a block diagram of an embodiment of an audio diagnosticssystem implemented in a media device;

FIG. 2 is a flowchart illustrating an audio diagnostics processperformed by the audio diagnostics system;

FIG. 3 is a block diagram of an embodiment of an audio diagnosticssystem implemented in a remote control; and

FIG. 4 illustrates a non-limiting example media device, which may be aset top box, a television, and/or another electronic device.

DETAILED DESCRIPTION

FIG. 1 is a block diagram of an embodiment of an audio diagnosticssystem 100 implemented in a media device 102, such as, but not limitedto, a set top box (STB). Embodiments of the audio diagnostics system 100may be implemented in other media devices, such as, but not limited to,a stereo, a surround-sound receiver, a radio, a television (TV), adigital video disc (DVD) player, a digital video recorder (DVR), a gameplaying device, or a personal computer (PC).

Embodiments of the audio diagnostics system 100 detect output audiocontent that is part of a presented media content event. The audiocontent is concurrently presented with video content. The at least onecharacteristic (defined as and interchangeably referred to herein as anaudio attribute) of the detected output audio content (defined as andinterchangeably referred to herein as the detected audio characteristic)determined from the detected sound is compared with a correspondingcharacteristic the intended audio content (defined as andinterchangeably referred to herein as the intended audio contentcharacteristic) that is associated with the presented video content ofthe intended media content event. That is, the detected audiocharacteristic is compared with a like characteristic of the intendedaudio characteristic.

If the output audio content does not correspond to the intended audiocontent, then embodiments of the audio diagnostics system 100 determinethe nature of the difference between the output audio content and theintended audio content (defined as and interchangeably referred toherein as the audio content characteristic deviation). When thedetermined detected audio characteristic does not correspond to theintended audio content characteristic, then embodiments of the audiodiagnostics system 100 implement a remedial action to change the outputof the audio content. Preferably, the remedial action corrects, or atleast reduces, the determined audio content characteristic deviation.The process of detecting audio sounds, comparing the audio sounds withthe intended audio content, and then performing at least one remedialaction if the detected sounds do not correspond to the intended audiocontent is defined as and is interchangeably referred to herein as anaudio diagnostics process.

For example, a user of the media device 102 may be viewing a mediacontent event, such as a movie (the intended media content event) thathas audio content that is available in either stereo or surround soundaudio content (the intended audio content) and stereo audio content.Here, the audio attribute is the type of audio content, here surroundsound or stereo. For example, but not limited to, the surround sound maybe available in 5.1 channel surround sound or another surround soundformat. In a hypothetical example, the initially detected output audiocontent may in stereo. Here, the detected audio characteristic is thatthe audio content is being output using two stereo channels of audio.However, if the intended audio content characteristic is that the audiois to be output in surround sound (predefined based on a specified userpreference). The audio diagnostics system 100 may then determine thatthe predefined user preference is for presentation of audio content insurround sound when surround sound audio content is available. Then, theaudio diagnostics system 100 implements a remedial action that changesthe output audio content from the stereo audio content to the userpreferred surround sound audio content of the movie. In an exampleembodiment, the audio diagnostics system 100 changes an audio channelinput of the media device 102 or a component of a media presentationsystem 104 from a stereo audio input channel to a surround sound audioinput channel.

As another example, a first media content event may be a movie that isreceived at the media device 102 from a first source. Another secondmedia content event may also be currently received at the media device102 from a second source. The audio diagnostics system 100 may detectand determine that the actual output audio content initially correspondsto the audio content of the second media content event. Here, thedetected audio characteristic corresponds to the second media contentevent. However, the intended audio content characteristic is the firstmedia content event. The determined audio content characteristicdeviation is that the audio content of the media content events are notthe same. Then the audio diagnostics system 100 changes audio output tothe first media content event, here the movie (the first media contentevent). That is, the remedial action implemented by the audiodiagnostics system 100 is to change the audio input to receive the firstsource so that the actual output audio content is then the audio contentof the movie.

The exemplary media device 102 is communicatively coupled to the mediapresentation system 104 that includes a visual display device 106, suchas a television (hereafter, generically a TV 106), and an audiopresentation device 108, such as a surround sound receiver controllingan audio reproduction device (hereafter, generically, a speaker 110).Other types of output devices may also be coupled to the media device102, including those providing any sort of stimuli sensible by a humanbeing, such as temperature, vibration and the like. The video portion ofthe media content event is displayed on the display 112 and the audioportion of the media content event is reproduced as sounds by one ormore speakers 110. In some embodiments, the media device 102 and one ormore of the components of the media presentation system 104 may beintegrated into a single electronic device.

The non-limiting exemplary media device 102 comprises a media contentstream interface 114, a processor system 116, a memory 118, a programbuffer 120, an optional digital video recorder (DVR) 122, a presentationdevice interface 124, a remote interface 126, a optional communicationsystem interface 128, an optional remote microphone interface 130, andan optional microphone 132. The memory 118 comprises portions forstoring the media device logic 134, the audio diagnostics processinglogic 136, an optional browser 138 and an optional diagnostics database140. In some embodiments, the media device logic 134, the audiodiagnostics processing logic 136, and/or the browser 138 may beintegrated together, and/or may be integrated with other logic. In otherembodiments, some or all of these memory and other data manipulationfunctions may be provided using a remote server or other electronicdevices suitably connected via the Internet or otherwise to a clientdevice. Other media devices may include some, or may omit some, of theabove-described media processing components. Further, additionalcomponents not described herein may be included in alternativeembodiments.

The functionality of the media device 102, here a set top box, is nowbroadly described. In a satellite broadcast system, a media contentprovider provides media content that is received in one or more multiplemedia content streams 142 multiplexed together in one or more transportchannels. The transport channels with the media content streams 142 arecommunicated to the media device 102 from a media system sourced from aremote head end facility (not shown) operated by the media contentprovider. The media device 102 is configured to receive one or morebroadcasted satellite signals detected by an antenna (not shown).Non-limiting examples of other media systems that broadcast a mediacontent stream 142 include a cable system, a radio frequency (RF)communication system, and the Internet.

The one or more media content streams 142 are received by the mediacontent stream interface 114. In a broadcast environment, one or moretuners 114 a in the media content stream interface 114 selectively tuneto one of the media content streams 142 in accordance with instructionsreceived from the processor system 116. The processor system 116,executing the media device logic 134 and based upon a request for amedia content event of interest specified by a user, parses out mediacontent associated with the media content event of interest. The mediacontent event of interest is then assembled into a stream of videoand/or audio information which may be stored by the program buffer 120such that the video and the audio content of a media content eventselected for presentation can be streamed out to components of the mediapresentation system 104, such as the visual display device 106 and/orthe audio presentation device 108, via the presentation device interface124 which is communicatively coupled to the visual display device 106via the connector 144 and/or to the audio presentation device 108 viathe connector 146. Alternatively, or additionally, the parsed out mediacontent may be saved into the DVR 122 for later presentation. The DVR122 may be directly provided in, locally connected to, or remotelyconnected to, the media device 102. In alternative embodiments, themedia content streams 142 may stored for later decompression, processingand/or decryption.

The exemplary media device 102 is configured to receive commands from auser via a remote control 150. The remote control 150 includes one ormore controllers 152 disposed on the surface of the remote control 150.The user, by actuating one or more of the controllers 152, causes theremote control 150 to generate and transmit commands, via a wirelesssignal 154, to the media device 102. The commands control the mediadevice 102 and/or control the components of the media presentationsystem 104. The wireless signal 154 may be an infrared (IR) signal or aradio frequency (RF) signal that is detectable by the remote interface126.

The processes performed by the media device 102 relating to theprocessing of the received media content stream 142 and communication ofa presentable media content event to the components of the mediapresentation system 104 are generally implemented by the processorsystem 116 while executing the media device logic 134. Thus, the mediadevice 102 may perform a variety of functions related to the processingand presentation of one or more media content events received in themedia content stream 142.

Depending upon the particular embodiment, the remote control 150 mayinclude a remote control microphone 156 disposed on the surface of theremote control 150. The remote control microphone 156 detects ambientnoise, which includes the actual output audio content from the speakers110 of the audio presentation device 108, from speakers (not shown) ofthe visual display device 106, or another audio output device (notshown).

It is appreciated that the location of the remote control 150 may varydepending upon where the user is using the remote control 150. In somesituations, the remote control may be configured to control multiplemedia devices 102 which may themselves be located in differentlocations, such as in different rooms in the user's house. Thus, theremote control microphone 156 may not necessarily be detecting theoutput audio content of the intended media content event that is beingpresented from components of the media presentation system 104 that arereceiving the intended media content event from the media device 102.

Accordingly, some embodiments may be configured to cause the remotecontrol 150 to determine which particular media device 102 it is inproximity to when a diagnostic procedure is performed by the audiodiagnostics system 100. Here, the remote control 150 would be in two-waycommunication with the media device(s) 102, wherein the media device 102currently in communication with the remote control 150 indicates itsidentity to the remote control 150, via the wireless signal 154.Alternatively, or additionally, the remote control 150 may indicate itsidentity to the media device 102. Then, a determination may be madewhether the detected sounds are being output from one or more componentsof the media presentation system 104 that is communicatively coupled tothat particular responding media device 102. If the detected sounds arethe same as the audio content being output from one or more componentsof the media presentation system 104, the audio diagnostics process mayproceed. Otherwise, the diagnostics process is not performed.

In some embodiments, a remote microphone 158 is used to detect theoutput audio content from components of the media presentation system104. Here, the remote microphone 158 is placed in a known location inthe vicinity of the components of the media presentation system 104 soas to be located and/or oriented to detect the output audio content. Insuch embodiments, the remote microphone 158 can be located at anysuitable location in proximity to the components of the mediapresentation system 104 that are outputting audio content to ensure thatthe output audio content is being presented. Further, the remotemicrophone 158 may be located and/or oriented so that detection of anypotential interfering noise from other noise sources that wouldotherwise be detected by the remote microphone 158 is reduced ormitigated.

The remote microphone 158 may be communicatively coupled to the mediadevice 102 and/or the remote control 150, via communication link 160.The communication link 160 may be implemented using a physical connectorand/or a wireless signal, such as an IR signal or a RF signal. In somealternative embodiments, the wireless signal communicated from theremote microphone 158 in the communication link 160 may be detectable bythe remote interface 126.

In some embodiments, a microphone 132 may be included in the mediadevice 102 to detect the output audio content. Presumably, themicrophone 132 will be in proximity to the components of the mediapresentation system 104 that are outputting audio content. Here, themicrophone 132 is presumed to be in the vicinity of the components ofthe media presentation system 104 since the media device 102 isproviding the media content event(s) to the media presentation system104.

In the various embodiments, the audio diagnostics processing logic 134is configured to analyze sounds from one of the detecting microphones132/156/158, discriminate the output audio content from the detectedsounds, analyze one or more characteristics of the output audio content,and then perform at least one remedial action that changes thecharacteristic of the output audio content. For example, if the actualoutput audio content (the determined detected audio characteristic) isdetermined to not match the corresponding intended audio contentcharacteristic of the video portion of a presented media content event,then a different audio input is provided to the media presentationsystem 104.

The new output audio content is then detected by the microphones132/156/158. The new detected audio characteristic is then determined.If the new detected audio characteristic still does not match theintended audio content characteristic of the video portion of apresented media content event, then another different audio input isprovided to the media presentation system 104. The process repeats untilthe detected audio characteristic does match the intended audio contentcharacteristic of the video portion of a presented media content event.

In some embodiments, the media device 102 may be configured to providethe detected output audio content (with the detected audiocharacteristic therein) to a remote diagnostics system 162. The remotediagnostics system 162 may include the processor system 116 and thememory 118 (configured for operation at the remote diagnostics system162). The remote diagnostics system 162 may be communicatively coupledto the media device via a communication network 164, at thecommunication system interface 128.

The communication network 164 is illustrated as a generic communicationsystem. In one embodiment, the communication network 164 comprises acellular telephone system, such as a radio frequency (RF) wirelesssystem. Accordingly, the media device 102 includes a suitabletransceiver. Alternatively, the communication network 164 may be atelephony system, the Internet, a Wi-fi system, a microwavecommunication system, a fiber optics system, an intranet system, a localaccess network (LAN) system, an Ethernet system, a cable system, a radiofrequency system, a cellular system, an infrared system, a satellitesystem, or a hybrid system comprised of multiple types of communicationmedia. Additionally, embodiments of the media device 102 may beimplemented to communicate using other types of communicationtechnologies, such as but not limited to, digital subscriber loop (DSL),X.25, Internet Protocol (IP), Ethernet, Integrated Services DigitalNetwork (ISDN) and asynchronous transfer mode (ATM). Also, embodimentsof the media device 102 may be configured to communicate overcombination systems having a plurality of segments which employdifferent formats for each segment that employ different technologies oneach segment.

The microphones 132/156/158 may provide the detected sounds to theremote diagnostics system 162. Alternatively, or additionally, the mediadevice 102 may determine and then provide one or more detected audiocharacteristics to the remote diagnostics system 162. For example, theuser may call into a help center or the like. The techniciantroubleshooting the media device 102 may cause the media device 102 tocommunicatively couple to the remote diagnostics system 162. Based onthe detected sounds at the media device 102, embodiments of the audiodiagnostics system 100 at the remote diagnostics system 162 may causethe media device 102 to perform one or more remedial actions.Alternatively, or additionally, the technician and/or the user mayperform one or more remedial actions based on the information that isthen available to the technician.

In some embodiments, a diagnostics graphical user interface (GUI) 166may be presented to the user during a diagnostics operation. Forexample, the user of the media device 102 may be provided theopportunity to specify which particular remedial action is preferred.For example, the user may specify a sound channel preference (such asstereo or 5.1 surround sound), a preferred native language, a level ofbass and/or treble output, or some other determinable characteristic ofthe output audio content.

In some situations, the user may wish to deactivate operation of theaudio diagnostics system 100. Here, the diagnostics GUI 166 may permitthe user to shut off or otherwise deactivate the audio diagnosticssystem 100 so that, for example, the user may view the video portion ofa sporting event while listening to a music station or a local broadcastof the sporting event from a radio station or the like.

In the various embodiments, various selectable remedial actions may bepredefined and stored in the diagnostics database 140. For example, aselection order of a series of remedial actions, such as the order ofinput channel changes, may be predefined and saved. In some embodiments,user preferences for particular remedial actions, and/or thecircumstances in which user preferred remedial action will be selected,may be stored in the diagnostics database. For example, the user mayprefer that audio content be presented in a surround format when a movieis being presented, and may prefer that audio content be presented usinga stereo format if audio content is being received in an over the airbroadcast signal.

FIG. 2 is a flowchart 200 illustrating an non-limiting example of anaudio diagnostics process performed by the audio diagnostics system 100.The flowchart 200 shows the architecture, functionality, and operationof a possible implementation of the software for implementing the audiodiagnostics processing logic 136 (FIG. 1). In this regard, each blockmay represent a module, segment, or portion of code, which comprises oneor more executable instructions for implementing the specified logicalfunction(s). It should also be noted that in some alternativeimplementations, the functions noted in the blocks may occur out of theorder noted in FIG. 2, may include additional functions, and/or may omitsome functions. For example, two blocks shown in succession in FIG. 2may in fact be executed substantially concurrently, the blocks maysometimes be executed in the reverse order, or some of the blocks maynot be executed in all instances, depending upon the functionalityinvolved. All such modifications and variations are intended to beincluded herein within the scope of this disclosure.

The process starts at block 202. At block 204, the currently outputaudio content is detected by one or more of the microphones 132/156/158.Here, the detected sound includes at least output audio content that isbeing output from at least one speaker, such as the speaker 110 or thespeakers of the TV 106. At block 206, the detected audio characteristicis determined from the output audio content detected at block 204.

At block 208, the corresponding intended audio content characteristicfrom the intended media content event is determined by the audiodiagnostics system 100. Here, the media device 102 is outputting knownvideo content, through the presentation device interface 124, tocomponents of the media presentation system 104. Accordingly, theprocessor system 116 may access the audio portion of that particularprocessing media content stream having the output video content toobtain the intended audio content. The intended audio content may beaccessed as the media content stream 142 is being received at the mediacontent stream interface 114, as the media content stream 142 is beingstored, processed or output from the program buffer 120, and/or as theaudio content is being output over the connector 144. The audiodiagnostics system 100 may then determine the intended audio contentcharacteristic from the accessed intended audio content.

At block 210, a comparison is made between the detected audiocharacteristic and the intended audio content characteristic. If, atblock 212, the detected audio characteristic and the intended audiocontent characteristic are the same (match), or are substantially thesame, the process proceeds to block 214 and ends.

If the detected audio characteristic and the intended audio contentcharacteristic are not the same (match), or are substantially not thesame, or are otherwise different by some measurable threshold value, theprocess proceeds to block 216. At block 216, a remedial action isperformed.

Any suitable variety of remedial actions and/or number of remedialactions may be implements at block 214 depending upon the embodiment ofthe audio diagnostics system 100 and depending upon the nature of thediagnosed audio characteristic. For example, but not limited to, if thedetected output audio content does not match the video portion of apresented media content event at block 210, the output audio inputchannel to the audio presentation device 108 may be changed to adifferent channel (preferably to match the currently presented movie).

After the remedial action process has been implemented, the diagnosticsprocess returns to block 204, wherein the new output audio content (thathas been adjusted by the implemented remedial action) is detected. Thenewly detected output audio content is processed to determine thedetected audio characteristic. The intended audio content is then againaccessed (optionally), and the current intended audio contentcharacteristic is determined. The new detected audio characteristic andthe current intended audio content characteristic are compared. Theprocess continues to repetitively cycle through blocks 204, 206, 208,210, 212 and 216 until the detected output audio content and theaccessed intended audio content are the same, or are substantially thesame, wherein the process is able to proceed to block 214 to end.

FIG. 3 is a block diagram of an embodiment of an audio diagnosticssystem 100 implemented in a remote control 150. The non-limitingexemplary remote control 150 comprises a processor system 302, a memory304, a transceiver 306, and the remote control microphone 156. Thememory 304 comprises portions for storing the remote control logic 308and the audio diagnostics processing logic 310. Other remote controldevices may include some, or may omit some, of the above-describedcomponents. Further, additional components not described herein may beincluded in alternative embodiments. For example, the remote control 150may be a smart phone, notepad or other electronic device configured tocontrol the media device 102 and/or components of the media presentationsystem 104 (FIG. 1).

The remote control microphone 156 detects output audio content. Thedetected audio output is then used to determine the detected audiocharacteristic.

The transceiver 306 is a two-way communication device configured totransmit and receive RF format signals in the wireless signal 154 thatis communicated from/to the media device 102. In this exampleembodiment, the media device remote interface 126 is also a transceiver.Accordingly, the media device 102 may communicate informationcorresponding to the intended audio content to the remote control 150.

In an example embodiment, the media device 102 accesses and thencommunicates the intended audio content itself to the remote control150. The remote control 150 then determines the intended audio contentcharacteristic. In another embodiment, the media device 102 determinesthe intended audio content characteristic, and then communicatesinformation corresponding to the intended audio content characteristicto the remote control 150. In yet another non-limiting exampleembodiment, the remote control 150 may determine the detected audiocharacteristic based on the sounds detected by its remote controlmicrophone 156, and then communicate the determined detected audiocharacteristic to the media device 102.

In some embodiments, as the remote control 150 is performing an audiodiagnostics process in accordance with the audio diagnostics processinglogic 310, the various remedial actions that are implemented when thedetected audio characteristic and the intended audio contentcharacteristic are not the same (match), or are not substantially thesame, the remote control 150 may itself generate and then issue commandsin the wireless signal 154 that are received by the media device 102and/or components of the media presentation system 104. Here, the remotecontrol 150 is operative to directly control the media device and/orcomponents of the media presentation system 104 such that the remedialactions are then implemented based on the issued remote controlcommands.

In some embodiments, a dedicated or predefined one of the controllers152, such as but not limited to the example controller 312 (FIG. 3), maybe used to initiate the audio diagnostics process performed by the audiodiagnostics system 100. For example, the user may not be satisfied withthe current output audio content (such as if there is an echo, delay,and/or other noticeable distortion). The user may actuate the controller312, predefined to with the associated command to initiate the audiodiagnostics process, such that the audio diagnostics system 100 detectsthe current output audio content, and then implements a correctiveremedial action so that the new output audio content is satisfactory tothe user.

The process of initiating an audio diagnostics process may be initiatedin a variety of other manners. Some embodiments may automaticallyinitiate the audio diagnostics process each time the user changeschannels (changes to a different media content event), such as when oneor more of the controllers 152 of the remote control 150 are actuated.Alternatively, or additionally, the audio diagnostics system 100 mayautomatically initiate the audio diagnostics process when the mediadevice 102 and/or components of the media presentation system 104 areinitially activated by the user (turned “on”). Alternatively, oradditionally, the audio diagnostics system 100 may automaticallyinitiate the audio diagnostics process if a service interruption occurs.Alternatively, or additionally, the audio diagnostics system 100 mayinitiate the audio diagnostics process in response to an instructionfrom a technician at the remote diagnostics system 162 during a troubleshooting event. Alternatively, or additionally, the audio diagnosticssystem 100 may initiate the audio diagnostics process when a controllerdisposed on the surface of, or elsewhere in, the media device 102 (notshown) is actuated, such as when an installer is initially installingthe media device 102 at the user's residence or the like. Alternatively,or additionally, the audio diagnostics system 100 may initiate the audiodiagnostics process by a user selection made via a presented diagnosticsGUI 166.

Alternatively, or additionally, the audio diagnostics system 100 mayautomatically initiate the audio diagnostics process if a significantchange (greater than a threshold value) in the detected sounds by one ormore of the microphones 132/156/158 occurs. For example, a loud ambientnoise may abruptly occur so as to interfere with the output audiocontent. If a non-limiting example remedial action is to adjust outputvolume, the audio diagnostics process may be initiated.

It is appreciated that some media content events may be presented instandard definition TV with only a single audio track or two audiotracks (stereo, with left and right channels). Other media contentevents, such as high definition (HD) content, may be presented withmultiple audio tracks, such as, but not limited to, an example 5.1surround sound audio track (with five or more audio channels) and aseparate stereo audio track (with two audio channels). Further, the usermay have preferences regarding which particular audio track they wish tolisten to if multiple audio tracks are available, such as when stereoand 5.1 surround audio tracks are selectively available. Thus,embodiments of the audio diagnostics system 100 may automaticallyinitiate an audio diagnostics process each time the user changes mediacontent events to ensure that the detected actual audio output contentcorresponds to the intended audio content that has been predefined as auser preference.

In the various embodiments, sounds detected by one or more of themicrophones 132/156/158 are processed to determine the detected audiocharacteristic. Any suitable detected audio characteristic may be usedfor comparing with the intended audio content characteristic during anaudio diagnostics process. Further, multiple detected audiocharacteristics may be determined, and then compared with correspondingintended audio content characteristics, to more reliably and accuratelydetermine the associated audio content characteristic deviations, andthereby identify one or more remedial actions that should beimplemented.

An example audio characteristic may be dialogue being spoken by actorsperforming in the media content event that is currently being presentedto the user. The sounds detected by the microphones 132/156/158 shouldinclude the dialogue, if present, that is output from the media device102 and/or components of the media presentation system 104. Embodimentsof the audio diagnostics system 100 may include a speech recognitionalgorithm and a speech to text conversion algorithm. Any suitable speechrecognition algorithm and/or speech to text conversion algorithm nowknown or later developed may be used by the various embodiments.

The speech recognition algorithm, in a first operation, analyzes thesounds detected by the microphones 132/156/158 and discerns (determines)the dialogue (spoken words) in the detected sound. The speech to textconversion algorithm, in a first operation, determines textcorresponding to the discerned (determined) dialogue.

For example, the user may be selecting a particular media content event,such as a movie, for viewing. During the audio diagnostics process, themovie's audio content portion (interchangeably referred to herein as anaudio track) corresponding to the currently presenting video portion ofthe movie is accessed by the audio diagnostics system 100. This accessedaudio content of the currently presenting media content event is theintended audio content. The speech recognition algorithm, in a secondoperation, discerns the dialogue occurring in the intended audiocontent. The speech to text conversion algorithm, in a second operation,is then used to determine text from the discerned dialogue of theaccessed audio portion of the currently presented portion of the movie.

To illustrate an example audio diagnostics process, consider asimplified hypothetical example of a movie that is currently presentinga scene with a single actor speaking to another off-camera actor. Thevideo portion of the currently presented movie will presumably show thesingle actor and/or some relevant scene background, with the presentedaudio content (which includes the dialogue being spoken by the actor andany background sound effects and/or background music) beingsynchronously presented with the video portion of the move. That is, themovement of the single actor's lips will correspond to the separatelypresented dialogue (of the presented audio portion of the movie) as theimage of the single actor is being presented on the display 112 (FIG.1). Here, suppose that the single actor is currently saying “Let's go,it is time to leave” to the off-camera actor. The audio diagnosticssystem 100 accesses the audio portion of the movie, and the speechrecognition algorithm discerns the single actor's speech from anybackground sound effects and/or background music. Then, the speech totext conversion algorithm generates the text “Let's go, it is time toleave” from the discerned dialogue.

Concurrently, the microphones 132/156/158 are detecting sounds,presumably which include presentation of the same audio portion of themovie. Here, the audio diagnostics system 100 receives the detectedsounds. The speech recognition algorithm discerns the actor's speechfrom any background sound effects, background music, and/or otherambient noise or sounds. Non-limiting examples of other ambient noise orsounds includes conversations between multiple users, noise emitted byother devices (such as a ringing phone or a noisy air conditioner unit),or noise from sources outside of the media room (such as passingvehicles, song birds, playing children, barking dogs, etc.), or thelike. Any suitable system or process now known or later developed may beused to discriminate dialogue of the media content event (the movie)from other detected sounds. Then, the speech to text conversionalgorithm generates the text “Let's go, it is time to leave” from thediscerned dialogue.

Next, the audio diagnostics system 100 compares the text “Let's go, itis time to leave” (determined from the discerned dialogue of theintended audio content) with the text “Let's go, it is time to leave”(determined from the discerned dialogue of the sounds detected by themicrophones 132/156/158). Since the determined text (words and/orletters) of the discerned dialogue of the intended audio content matcheswith the text determined from the discerned dialogue of the soundsdetected by the microphones 132/156/158, the audio diagnostics system100 determines that the currently output audio content from the mediadevice 102 and/or components of the media presentation system 104 isfrom the currently presenting movie. That is, there is no audio contentcharacteristic deviation in this simplified example. Thus, the audiodiagnostics process ends (see block 214 of FIG. 2) because of theabove-described determination that the correct audio track is beingpresented to the user.

On the other hand, the text determined from the discerned dialogue ofthe intended audio content may not match with the determined text fromthe discerned dialogue of the sounds detected by the microphones132/156/158. Here, the audio content characteristic deviation is thatthe words determined from the detected sound does not match the wordsdetermined from the movie's audio track. In this situation, the audiodiagnostics system 100 determines that the currently presented outputaudio content from the media device 102 and/or components of the mediapresentation system 104 is from the currently presenting movie do notmatch (as determined at block 212 of FIG. 2). Then, a remedial actionwould be initiated by the audio diagnostics system 100 (see block 216 ofFIG. 2).

FIG. 4 illustrates a non-limiting example media device 402, which may bea set top box, a television, and/or another electronic device. The audiodiagnostics system 100 may be located in the set top box, thetelevision, the remote control 150 and/or the other electronic device.For example, the exemplary media device 402 may optionally have a remoteinterface 126, a program buffer 120, the DVR 122, or any other suitablecomponent. Further, the media device 402 may include the memory 118 andoptionally include therein the above-described login and/or information.

It is appreciated that the media device 402 is configured to receiveaudio input from a plurality of various different sources of mediacontent, such as a stereo 404, a radio 406, a CD/DVD player 408, anantenna 410 (detecting an over the air broadcast), a cable connector 412(coaxial cable or fiber optic cable), a media content stream sourceproviding the media content stream 142, and/or the Internet site 414.

The various content sources are connectable to the media device 402and/or components of the media presentation system 104 via variousavailable input interfaces, generically and collectively shown at thecontent inputs 416. The non-limiting exemplary content inputs 416comprises a stereo interface 418, a radio interface 420, a CD/DVD playerinterface 422, an antenna interface 424, a cable interface 426, themedia content stream interface 114. Each of these sources of mediacontent may provide a media content stream 142 to the media device 402.Other input interfaces now known or later developed may be provided tothe media device 402.

Typically, these various interfaces include a video input and an audioinput. If wire connectors are used to connect the source device to therespective input interface, a separate video connector and a separateaudio connector may be used. A single connector, such as a HMDI oroptical connector coupled to the corresponding HDMI/Optical interface430, may be used depending upon the source of media content. Forexample, the CD/DVD player 408 may be configured to output media contentstream 142 from separate wire connectors and/or a HDMI or optical typeconnector. Some connections to the inputs may be wireless.

Further, the various sources of media content may be configured todirectly connect to one or more of the components of the mediapresentation system 104. For example, the CD/DVD player 408 may beconfigured to output the video content portion of the media contentstream 142 to the media device 402, which presents a high quality videocontent signal to the display 112. Concurrently, the audio contentportion may be communicated from the CD/DVD player 408 to the surroundsound receiver from separate wire connectors, and/or a HDMI, opticaltype or wireless connector. When such systems comprising the mediadevice 402 and the components of the media presentation system 104 arecommunicatively coupled to difference sources of media content in suchmanners, it is appreciated that the there is a likelihood that thepresented audio content and the presented video content may becomemismatched.

These various video content inputs and audio content inputs,interchangeably referred to herein as video input channels and audioinput channels, respectively. These input channels are controllable bythe interface controller 432. The interface controller 432, based oninstructions received from the processor system 116, controls whichparticular selected channels of video content and audio content areprocessed, and then provided to the components of the media presentationsystem 104. That is, the processor communicates an instruction signal tothe interface controller 432. The interface controller 432 then operatesto selectively receive media content for the designated media contentsource, which is then processed and is communicated to components of themedia presentation system 104.

The particular source of media content is selectable by the user, and/ormay be automatically selectable by the media device 102, such as whenHDMI connectors are being used, Further, components of the mediapresentation system 104 may be selected by the audio diagnostics system100 when a remedial action is being implemented during an audiodiagnostics process. In this simplified illustrative example above,wherein the discerned dialogue of the intended audio content (the movie)does not match with the determined text from the discerned dialogue ofthe detected sounds, the remedial action implemented by the audiodiagnostics system 100 is to automatically change the current audioinput channel to a different audio input channel at one of the mediadevice 102/402 and/or components of the media presentation system 104(see block 216 of FIG. 2). For example, the processor system 116 mayoperate the interface controller 432 to provide the intended audiooutput.

Then, after the first remedial action has been completed (changing toanother audio input channel), the audio diagnostics system 100 receivesnew sounds being detected by the microphones 132/156/158. The newlydetected sounds are processed such that new text is determined from anydiscerned dialogue. However, it is appreciated that the newly determinedtext from the detected sounds must be compared with the current intendedaudio content because, by that time, the dialogue of the currentlypresenting portion of the user's intended media content event will bedifferent. Therefore, the current intended audio content is concurrentlyaccessed and text is determined therefrom. If the newly determined textfrom the detected sounds corresponds to the newly determined text of theintended audio content, then the audio diagnostics system 100 determinesthat the currently output audio content from the media device 102/402,and/or components of the media presentation system 104, is from thecurrently presenting movie. That is, the remedial action was successful(wherein there was no audio content characteristic deviation because thediscerned dialogue of the movie now matches with the determined textfrom the discerned dialogue of the detected sounds). Thus, the audiodiagnostics process ends.

However, if the newly determined text from the detected sounds stilldoes not correspond to (does not match) the newly determined text of theintended audio content, then the audio diagnostics system 100 determinesthat further remedial actions are needed. Here, another audio contentinput may be selected (a second remedial action), sounds then detected,text determined therefrom, and then compared (in accordance with thelooping process of blocks 204, 206, 208, 210 and 212 of FIG. 2). Theiterative process continues until the detected sounds indicate that thecorrect audio input channel is being used by the media device 102/402,and/or components of the media presentation system 104. Then, the audiodiagnostics process ends.

In some embodiments, the closed captioning text of the intended mediacontent event may be available. In an example embodiment, thecorresponding closed caption text for the time period that the text wasdetermined from the sounds detected by the microphones 132/156/158 arebe compared. Based on a match between the determined text and the closedcaptioning text, or a match in text that is within some predefinedthreshold, a determination is made whether the audio content output bythe media device 102/402 and/or components of the media presentationsystem 104 corresponds to the intended audio content.

It is appreciated that other detectable sounds may distort or otherwiseimpact the determination of the audio content characteristic that isdetermined based on the sounds detected by the microphones 132/156/158.For example, when multiple users are present, their conversation islikely to be detected with detection of the current audio output fromthe media device 102 and/or components of the media presentation system104. Returning to the simplified hypothetical example above, considerthat the user spoke “John, please pass me my cocktail” at the same timethat the output from the media device 102 and/or components of the mediapresentation system 104 included the dialogue “Let's go, it is time toleave.” Here, the determined text (the audio content characteristic)would be “Let's go, it is time to leave . . . John, please pass me mycocktail.” (More likely, the determined words of the two phrases abovewill be interleaved together.) Accordingly, the text determined from thesounds detected by the microphones 132/156/158 would not match the textdetermined from the intended media content event, here “Let's go, it istime to leave.” However, a sufficient number of individual text wordsmatch such that the audio diagnostics system 100 may determine that thecorrect audio input channel is being used by the media device 102/402and/or components of the media presentation system 104. Thus, someembodiments may determine a number of words that are different (or thenumber of matching text words) between the determined text of thedetected sounds and the text determined from the intended audio content,and then compare the determined difference in the text words (or thenumber of matching text words) with a predefined threshold. If thenumber of words in the text determined from the detected sounds iswithin the threshold, then the audio diagnostics system 100 determinesthat the currently output audio content from the media device 102/402and/or components of the media presentation system 104 is from thecurrently presenting movie (and the audio diagnostics process ends).Alternatively, or additionally, a ratio between the number of words inthe text determined from the detected sounds and the number of words inthe text determined from the intended audio content may be compared witha threshold ratio.

Further, the above-described threshold number or ratio of text words maybe related to a predefined duration. One skilled in the art appreciatesthat some duration of time is required for dialogue (of multiple spokenwords) to be presented in a scene. An example embodiment may employ apredefined duration window of five seconds that is used during the audiodiagnostics process. Here, the number of words in the text determinedfrom the detected sounds and the number of words in the text determinedfrom the intended audio content, or the ratio determined therefrom, isbased on the three second predefined duration. That is, only fiveseconds of detected sounds are compared with three seconds of theintended audio content. Any suitable duration may be used by the variousembodiments.

Further, some embodiments may optionally employ a sliding windowduration for evaluation. Further, the evaluated sliding window durationmay be evaluated over a longer duration for an iteration of the audiodiagnostics process. For example, the three second predefined durationmay be evaluated along a sliding timeline of five seconds. Accordingly,if a sufficient match in text over any particular three second windowduration during the five seconds of the audio diagnostics process willbe sufficient for the determination of whether the text matches.

Alternatively, or additionally, some embodiments may employ an activeand/or passive filtering system to filter out some sounds that areincluded in the sound detected by the microphones 132/156/158. Forexample, a sound associated with a large volume change might be filteredout. Known sounds likely to be detected by the microphones 132/156/158(such a telephone ring tone, a passing vehicle, a barking dog or thelike) may be filtered out from the detected sounds. Such active and/orpassive filtering systems in the audio diagnostics processing logic 136(FIG. 1) may be implemented using hardware, logic, firmware, or acombination thereof.

Alternatively, or additionally, other audio content characteristics maybe employed by the audio diagnostics system 100. Some embodiments maydetermine the presentation time difference between sound information,such as the above-described text determined from the sounds detected bythe microphones 132/156/158 and sound information determined from theintended media content event.

Returning to the above-described hypothetical example above, the text“Let's go, it is time to leave” (determined from the discerned dialogueof the sounds detected by the microphones 132/156/158) may be presentedsome duration behind the intended presentation time of the correspondingtext of the audio content of the currently presented media contentevent. For example, a single word may be selected, and the presentationtime determined for that selected word.

Alternatively, or additionally, a discernible sound may be selected, andthe presentation time determined for that selected sound. Any suitablediscernible sound may be selected and the presentation time determined.For example, a musical note or melody may be used. As anothernon-limiting example, an explosion, lightning, gunshot, horn honk, dogbark or the like may be used as a discernible sound. Any discerniblesound that can be identified from the intended audio content and thedetected sounds may be used in the various embodiments.

Although the audio diagnostics system 100 may determine that the correctaudio content is being output by the media device 102/402 and/orcomponents of the media presentation system 104, a presentation timedelay may be determined (the audio content characteristic deviation).That is, the presentation of the audio content is not correctlysynchronized with presentation of the video content, known as the lipsync problem. Such a determined presentation delay in the audio contentmay be determined to be an unacceptable audio content characteristicdeviation (outside of some predefined presentation time threshold).Accordingly, a corrective remedial action is warranted. Here, anembodiment of the audio diagnostics system 100 would automaticallychange the presentation time of the audio content (the remedial action)by some predefined amount based on the detected presentation timedifference (the audio content characteristic). Then, the audiodiagnostics system 100 could next determine if there was a continuingaudio content characteristic deviation that would require furtherpresentation time adjustment.

Another audio content characteristic is a determination of sound outputfrom multiple speakers. For example, the currently presenting videoportion may show a first actor and a second actor having a conversation(dialogue). In accordance with the intended audio content, the firstactor's voice may be output from a left channel speaker, and the secondactor's voice may be output from a right channel speaker. Someembodiments may concurrently receive detected sounds from a plurality ofmicrophones 132/156/158. Accordingly, the detected sounds may beanalyzed to determine the direction of emitted sound, and or whether thesound is even being emitted from different directions (that is, fromdifferent speakers, such as the rear channel speakers in 5.1 surroundsound audio content). In some embodiments, the remedial action may be tochange the audio channel balancing (increasing output from one or moreof the audio channels of individual speaker or speaker groups).

As another non-limiting example, if the audio track of the moviecontains multiple channels (such as stereo, surround sound 5.1, or thelike), the multiple audio input channels may each be analyzed toidentify corresponding text from the dialogue being presented from eachaudio input channel. Optionally, the generated text may be combined (ina synchronous manner, thus emulating a conversation between a pluralityof actors speaking in the movie, for example) to determine the intendedaudio content characteristic (here, the text of the movie dialoguecorresponding to the video portion of the movie that is being currentlypresented to the user). Here, the detected sounds may be compared withthe various different audio input channels of the intended audio contentto determine if the media device 102/402 and/or components of the mediapresentation system 104 are presenting the correct audio content.

In addition to detection of text, or alternatively, some embodiments ofthe audio diagnostics system 100 may analyze other sounds. For example,but not limited to, embodiments may detect the presence of (or absenceof) music. If the intended audio content characteristic includes bothdialogue (words) and music, and if no music is detected, then the audiodiagnostics system 100 may determine that the audio content beingpresented by the media device 102/402 and/or components of the mediapresentation system 104 does not correspond to the audio content of theintended media content event.

Conversely, if the intended audio content characteristic includesdialogue (words) with no music, and if music is detected, then the audiodiagnostics system 100 may determine that the audio content beingpresented does not correspond to the audio content of the intended mediacontent event. However, one skilled in the art appreciates that detectedmusic may be coming from other noise sources. Accordingly, in thisexemplary situation, one or more other audio content characteristics maybe considered so as to improve the accuracy and/or reliability of anydeterminations made by the audio diagnostics system 100.

In some embodiments, sound quality may be an audio contentcharacteristic that is used to determine and/or implement a remedialaction. For example, if the bass tones and/or treble tones of thedetected sounds are not as intended, the bass and or treble controllersmay be automatically adjusted.

In some embodiments, an absence of sounds may be an audio contentcharacteristic. For example, the media device 102/402 and/or componentsof the media presentation system 104 may have been inadvertently set toa mute or silence mode of operation. The remedial action would be toactivate the sound output (end the mute or silence mode of operation).Alternatively, or additionally, a remedial action may be to increasevolume output by some predefined increment.

In some embodiments, presentation of the media content event may bepaused otherwise stopped. One or more test tones may then be generatedand output by the media device 102/402 and/or components of the mediapresentation system 104. Here, the intended audio content is thegenerated test tone. The microphones 132/156/158 detect the test tonesound. Then, the audio diagnostics system 100 compares the detected testtone sounds with the generated test tones. Any differences between thedetected test tones and the generated test tones may be used to definean audio content characteristic deviation, and then used to determine acorrective remedial action.

In some embodiments, a language of the detected sound may be an audiocontent characteristic. For example, the media device 102/402 and/orcomponents of the media presentation system 104 may be outputting theaudio content in a first language. However, the user may have specified(predefined) a preference for the audio to be output in a seconddifferent language. Generated text from the sounds detected by themicrophones 132/156/158 are used to compare with known text of variouslanguages, or at least the preferred language. If the detected languageof the audio output is not the preferred language (here, the audiocontent characteristic deviation is a mismatch in languages), then theremedial action would be to change to an audio channel having the audiocontent of the intended foreign language.

Some embodiments of the audio diagnostics system 100 may analyze anaudio signature (also known as an acoustic fingerprint) of the detectedsounds with a corresponding audio signature of the intended audiocontent. If the compared audio signatures are entirely different, thenthe audio diagnostics system 100 may determine that the audio contentbeing presented by the media device 102/402 and/or components of themedia presentation system 104 does not correspond to the audio contentof the intended media content event. Remedial actions may be toautomatically cycle through different audio input channels until thecorrect audio input channel (that is outputting the intended audiocontent) is selected by the media device 102/402 and/or components ofthe media presentation system 104.

An audio signature (acoustic fingerprint) is a condensed digitalsummary, deterministically generated from an audio signal. Thedetermined audio signature can be used to identify that characteristicsof an audio sample. A first audio signature can be determined from thesounds detected by the microphones 132/156/158. A second audio signaturecan be determined from a selected corresponding portion of the intendedaudio content. The audio signatures are then compared with each other.If the compared audio signatures match, are the same, or aresubstantially the same within some predefined threshold, the audiodiagnostics system 100 may determine that the audio content beingpresented by the media device 102/402 and/or components of the mediapresentation system 104 corresponds to the audio content of the intendedmedia content event (that is, there is no audio content characteristicdeviation). On the other hand, if the audio signatures are different, orare different beyond a predefined threshold, then the audio diagnosticssystem 100 may determine that the audio content being presented by themedia device 102/402 and/or components of the media presentation system104 does not correspond to the audio content of the intended mediacontent event. A remedial action may then be implemented.

Any suitable audio signal (acoustic fingerprint) algorithm now known orlater developed may be used by the various embodiments. Preferably, theaudio signatures may be generated for a short but meaningful predefinedduration that is sufficient for a reliable and accurate comparison. Forexample, the duration may be predefined to be several seconds. Further,a sliding window of time over a longer duration may be used by someembodiments as described above.

In some embodiments, the compared audio signatures may indicate apresentation timing difference between the actual presentation of theaudio content detected by the microphones 132/156/158 and the intendedpresentation time indicated by the intended audio content (wherein thedetermined time delay is the audio content characteristic deviation).Here, the remedial action may be to incrementally delay or advancepresentation of the audio content output by the media device 102/402and/or components of the media presentation system 104 until thepresented audio content is presented in synchronism with the presentedvideo content.

In some situations, the detected audio signature may indicate thatmultiple audio input channels are concurrently being output by the mediadevice 102/402 and/or components of the media presentation system 104.For example, if the TV used to display the video content is alsopresenting the audio content, and if concurrently the speakers 110 ofthe audio presentation device 108 (the surround sound receiver) arepresenting audio content, the duplicate concurrent presentation of audiocontent may be determined to be the audio content characteristicdeviation. Here, the remedial action may be to turn off the TV speakersso that the audio content is being presented only by the speakers 110.Alternatively, the remedial action may be to turn off the speakers 110so that the audio content is being presented only by the TV speakers.

An audio signature based on detected sounds may vary from the audiosignature generated from the intended audio content because of othernoise or sounds introduced by other sources. Accordingly, an audiosignature threshold may be used to compare the audio signature based ondetected sounds and the audio signature generated from the intendedaudio content. If the audio signatures are within the predefined audiosignature threshold, then the audio diagnostics system 100 may determinethat the audio content being presented by the media device 102/402and/or components of the media presentation system 104 corresponds tothe audio content of the intended media content event. Any suitableaudio signature threshold, and process of comparing audio signatureswith the audio signature threshold, now known or later developed may beused by the various embodiments of the audio diagnostics system 100.

Another exemplary audio signature is an audio watermark that may beadded into the audio portion of media content stream. Audio watermarksmay be added by the media content producer or other interested thirdparty to identify the media content event. The watermark may includeinformation pertinent to various aspects of digital rights management(DRM). Accordingly, a detected audio watermark may provide informationthat may be used by the above-described embodiments of the audiodiagnostics system 100, and then be used to define one or more remedialactions.

Some audio compression formats may introduce artifacts into thepresented audio content. For example, compression may cause a pre-echo,a well known “swirlies” and/or an absence of signal in frequencies belowa predefined spectral mask. Such compression-related artifacts may bedetected by the above-described embodiments of the audio diagnosticssystem 100, and then be used to define one or more remedial actions.

Remedial actions may be effected in a variety of manners. In someembodiments, the media device 102/402 may automatically implement theremedial actions to reconfigure itself to output the correct audiocontent to the components of the media presentation system 104. Forexample, the media device may automatically change output audio for afirst foreign language to a second foreign language. As anothernon-limiting example, the media device 102/402 may automatically changeits audio input channels so that the correct audio content is beingprovided to the components of the media presentation system 104.

Alternatively, or additionally, some media systems may be configured torespond to consumer electronics council (CEC) formatted commands betweenelectronic devices that are communicatively coupled together usinghigh-definition multimedia interface (HDMI) connectors. For example, butnot limited to, the media device 102/402 may automatically communicate aCEC type remedial action instruction, via a HDMI connector, to one ormore of the components of the media presentation system 104 during anaudio diagnostics process.

Alternatively, or additionally, remedial action instructions may begenerated by the remote control 150 and communicated to the media device102/402 and/or components of the media presentation system 104, via thewireless signal 154. In some embodiments, an IR blaster may becommunicatively coupled to the media device 102/402. The media device102/402 may then communicate the remedial action commands to thecomponents of the media presentation system 104 via the IR blaster.

In some embodiments, one or more remedial actions may be predefined as apreferred remedial action. In an example embodiment, the user may beable to specify one or more remedial actions as preferred remedialactions via the diagnostics GUI 166. For example, the user may specify apreference for 5.1 channel surround sound over stereo. Thus, remedialactions intended to change audio presentation to the preferred 5.1channel surround sound are initially selected as remedial actions. Ifthe 5.1 channel surround sound options do not result in the presentationof the correct audio content (such as when the media content event isavailable only in stereo), then subsequent non-5.1 channel surroundsound are tried after the possible 5.1 channel surround sound optionsare exhausted.

As another example, some audio presentation devices 108 (the surroundsound receivers) provide different output audio special effect modes,such as theatre, movie, etc. Thus, a remedial action implemented byembodiments of the audio diagnostics system 100 may be to cycle throughthese different available audio special effect modes. The user may havepredefined a preference for a movie sound special effect mode if a mediacontent event from a DVD is being presented. If the detected soundsindicate that the output audio content is not using the movie soundspecial effect mode, and if the media content event is being provided bythe DVD player, then the remedial action is to change to the movie soundspecial effect mode. Alternatively, the user may have predefined anotherspecial effect mode for presentation of audio content when the mediacontent event is being received from another source, such as a broadcastmedia content stream 142. Here, the other preferred special effect modewould be the selected for a remedial action.

For example, the user may be watching a movie, wherein the audio contentand the video content of the movie is being communicated to the TV 106.However, the user may prefer that the audio output be muted at the TV106 such that the TV speakers do not output the movie audio content,only the video content of the movie on its display 112. The user mayprefer that the speakers 110 controlled by the audio presentation device108 (the surround sound receiver) be used to output the movie audiocontent. Here, the intended audio content may be accessed at the mediacontent stream interface 114, at the program buffer 120, and/or from theconnector 144. A mute control signal may be sent to the TV 106.Alternatively, the audio content may be blocked (not transmitted) outfrom the presentation device interface 124 via the connector 144. Here,the audio content would be communicated (transmitted) out from thepresentation device interface 124 via the connector 146.

It should be emphasized that the above-described embodiments of theaudio diagnostics system 100 are merely possible examples ofimplementations of the invention. Many variations and modifications maybe made to the above-described embodiments. All such modifications andvariations are intended to be included herein within the scope of thisdisclosure and protected by the following claims.

1. A method that presents media content, the method comprising:detecting sound using at least one microphone, wherein the detectedsound includes at least audio content that is being output from at leastone speaker; determining a detected audio characteristic from thedetected sound; determining an intended audio characteristic from audiocontent of a media content event that is currently being presented,wherein the intended audio characteristic is the same as the detectedaudio characteristic, and wherein the intended audio contentcharacteristic is determined during a duration that the sound detectionoccurs; comparing the determined detected audio characteristic with thedetermined intended audio characteristic; and performing at least oneremedial action in response to the detected audio characteristic notmatching the intended audio characteristic, wherein the remedial actionchanges the audio content that is being output from the at least onespeaker.
 2. The method of claim 1, wherein the detected audiocharacteristic, the intended audio characteristic, and the remedialaction are respectively a first detected audio characteristic, a firstintended audio characteristic, and a first remedial action, and whereinafter the at least one remedial action is performed, the method furthercomprising: repeating the sound detecting; determining a second detectedaudio characteristic from the repeated sound detecting; determining asecond intended audio characteristic from the media content event duringa duration that the repeated sound detecting occurs; comparing thedetermined second detected audio characteristic with the determinedsecond intended audio characteristic; performing at least one secondremedial action in response to the detected second audio characteristicnot matching the intended second audio characteristic, wherein thesecond remedial action further changes the output audio content that isbeing output from the at least one speaker; and ending the method inresponse to the detected second audio characteristic matching theintended second audio characteristic.
 3. The method of claim 1, whereindetermining the detected audio characteristic from the detected soundcomprises: discerning first dialogue from the detected sound; anddetermining first text from the discerned first dialogue, whereindetermining the intended audio characteristic from the audio content ofthe media content event comprises: discerning second dialogue from theaudio content of the media content event; and determining second textfrom the discerned second dialogue, wherein comparing the determineddetected audio characteristic with the determined intended audiocharacteristic comprises comparing the first text with the second text,and wherein the at least one remedial action is performed in response tothe first text not matching the second text.
 4. The method of claim 3,wherein performing the at least one remedial action comprises: changingan audio channel input from a first audio input channel to a secondaudio input channel.
 5. The method of claim 3, wherein comparing thefirst text with the second text comprises: determining a first number ofwords of the first text; determining a second number of words of thesecond text; determining a difference between the first number of wordsand the second number of words; comparing the difference with athreshold number; and performing the at least one remedial action whenthe difference is less than or equal to the threshold number.
 6. Themethod of claim 3, wherein comparing the first text with the second textcomprises: determining a first number of words of the first text;determining a second number of words of the second text; determining aratio between the first number of words and the second number of words;comparing the ratio with a threshold ratio; and performing the at leastone remedial action when the difference is less than or equal to thethreshold ratio.
 7. The method of claim 1, further comprising: whereindetermining the detected audio characteristic from the detected soundcomprises determining whether the output from the at least one speakeris output in stereo or is output in surround sound, wherein determiningthe intended audio characteristic from the audio content of the mediacontent event comprises determining whether the audio content of themedia content event that is currently output is available in stereo andis available in surround sound, wherein comparing the determineddetected audio characteristic with the determined intended audiocharacteristic comprises: determining that the output from the at leastone speaker is output in stereo; and determining a predefined userpreference for presentation of audio content in surround sound whensurround sound audio content is available, wherein performing the atleast one remedial action comprises changing an audio channel input froma stereo audio input channel to a surround sound audio input channelwhen the predefined user preference is for the surround sound audiocontent.
 8. The method of claim 1, further comprising: whereindetermining the detected audio characteristic from the detected soundcomprises: discerning first dialogue from the detected sound; anddetermining a first language of the first dialogue, wherein determiningthe intended audio characteristic from the audio content of the mediacontent event comprises: discerning second dialogue from the audiocontent of the media content event; and determining a second languagefrom the discerned second dialogue, wherein comparing the determineddetected audio characteristic with the determined intended audiocharacteristic comprises: determining whether the audio content of themedia content event that is currently output is available in the firstlanguage and is available in the second language; and determining apredefined user language preference for presentation of audio content,wherein performing the at least one remedial action comprises changingan audio channel input from a first audio input channel having the firstlanguage to a second audio input channel having the second language whenthe predefined user language preference is for the second language. 9.The method of claim 1, wherein determining the detected audiocharacteristic from the detected sound comprises: discerning dialoguefrom the detected sound; and determining text from the discerneddialogue, wherein determining the intended audio characteristic from theaudio content of the media content event comprises: accessing closedcaptioning text of the media content event; and determining second textfrom the closed captioning text, wherein comparing the determineddetected audio characteristic with the determined intended audiocharacteristic comprises comparing the text from the discerned dialoguewith the closed captioning text, and wherein performing the at least oneremedial action in response to the text from the discerned dialogue notmatching the closed captioning text comprises changing an audio channelinput from a first audio input channel to a second audio input channel.10. The method of claim 1, wherein determining the detected audiocharacteristic from the detected sound comprises determining an absenceof music in the detected sound, wherein determining the intended audiocharacteristic from the audio content of the media content eventcomprises determining presence of music in the audio content of themedia content event, wherein comparing the determined detected audiocharacteristic with the determined intended audio characteristiccomprises determining that music is absent in the detected sound andthat music is present in the audio content of the media content event,and wherein performing the at least one remedial action in response tothe music being absent in the determined sound and present in the audiocontent of the media content event comprises changing an audio channelinput from a first audio input channel to a second audio input channel.11. The method of claims 1, wherein determining the detected audiocharacteristic from the detected sound comprises determining an absenceof audio content of the media content event in the detected sound,wherein determining the intended audio characteristic from the audiocontent of the media content event comprises determining presence ofaudio content in the media content event, wherein comparing thedetermined detected audio characteristic with the determined intendedaudio characteristic comprises determining that audio content is absentin the detected sound and is present in the media content event, andwherein performing the at least one remedial action in response to theaudio content being absent in the determined sound and present in themedia content event comprises ending muting of an audio channel inputthat is presenting the audio content of the media content event.
 12. Themethod of claim 1, wherein determining the detected audio characteristicfrom the detected sound comprises: discerning first dialogue from thedetected sound; determining first text from the discerned firstdialogue; selecting a first word of the first text; and determining afirst presentation time of the first word, wherein determining theintended audio characteristic from the audio content of the mediacontent event comprises: discerning second dialogue from the audiocontent of the media content event; determining second text from thediscerned second dialogue; selecting a second word of the second text;and determining a second presentation time of the second word, whereincomparing the determined detected audio characteristic with thedetermined intended audio characteristic comprises comparing the firstpresentation time of the first word with the second presentation time ofthe second word, and wherein performing the at least one remedial actioncomprises one of advancing or delaying a presentation time of the audiocontent of the media content event by a predefined duration.
 13. Themethod of claim 1, wherein determining the detected audio characteristicfrom the detected sound comprises: discerning a first sound from thedetected sound; and determining a first presentation time of the firstsound, wherein determining the intended audio characteristic from theaudio content of the media content event comprises: discerning a secondsound from the audio content of the media content event that is the sameas the first sound; and determining a second presentation time of thesecond sound, wherein comparing the determined detected audiocharacteristic with the determined intended audio characteristiccomprises comparing the first presentation time of the first sound withthe second presentation time of the second sound, and wherein performingthe at least one remedial action comprises one of advancing or delayinga presentation time of the audio content of the media content event by apredefined duration.
 14. The method of claim 1, wherein determining thedetected audio characteristic from the detected sound comprisesdetermining a first audio signature the detected sound, whereindetermining the intended audio characteristic from the audio content ofthe media content event comprises determining a second audio signatureof audio content in the media content event, wherein comparing thedetermined detected audio characteristic with the determined intendedaudio characteristic comprises comparing the first audio signature andthe second audio signature, and wherein the at least one remedial actionis performed in response to the first audio signature not matching thesecond audio signature.
 15. The method of claim 1, wherein detectingsound using at least one microphone and determining the intended audiocharacteristic from audio content of the media content event both occurduring a same predefined duration.
 16. A system configured to presentmedia content, comprising: at least one microphone configured todetected sound, wherein the sound includes at least output audio contentthat is being output from at least one speaker; a processor systemcommunicatively coupled to the microphone and configured to receiveinformation corresponding to the detected sound, wherein the processorsystem is configured to: determine a detected audio characteristic fromthe detected sound; determine an intended audio characteristic fromaudio content of a media content event that is currently beingpresented, wherein the intended audio characteristic is the same as thedetected audio characteristic, and wherein the intended audio contentcharacteristic is determined during a duration that the sound detectionoccurs; compare the determined detected audio characteristic with thedetermined intended audio characteristic; and perform at least oneremedial action in response to the detected audio characteristic notmatching the intended audio characteristic, wherein the remedial actionchanges the output audio content that is being output from the at leastone speaker.
 17. The system of claim 16, further comprising: a remotecontrol, wherein the microphone and the processor system reside in theremote control.
 18. The system of claim 16, further comprising: A firstinterface communicatively coupled to a first media content source; asecond interface communicatively coupled to a second media contentsource; and an interface controller communicatively coupled to theprocessor system, the first interface and the second interface, whereinthe processor system is further configured to operate the interfacecontroller to change an input channel from the first media contentsource to the second media content source when the remedial action isperformed.
 19. The system of claim 16, further comprising: acommunication system interface, and configured to communicatively couplethe microphone to a remote diagnostics system via a communicationnetwork, wherein the processor system resides at the remote diagnosticssystem and the detected sound is communicated from the microphone to theremote diagnostics system via the communication network.
 20. The systemof claim 16, wherein the microphone is a first microphone, and furthercomprising: at least one second microphone, determining whether thesound detected by the first microphone and the at least one secondmicrophone is audio content output in stereo or is audio content outputin surround sound; determine whether the audio content of the mediacontent event that is currently output is available in stereo and isavailable in surround sound; determine a predefined user preference forpresentation of audio content in surround sound when surround soundaudio content is available; and change an audio channel input from astereo audio input channel to a surround sound audio input channel whenthe predefined user preference is for the surround sound audio content.